Software

TI-Nspire Version

Activity Overview

Objectives

Model a real-world application with a linear system of equations with three variables.

Use the technology to solve a system of three equations in three variables and interpret the solutions

Utilize the information from their solution to solve other problems

Vocabulary

coefficients

linear system

system of equations

About the Lesson

This lesson involves setting up and solving systems of equations. As a result, students will:

Write a system of linear equations with three variables to model a real-world application.

Solve their system of equations.

Utilize their solutions to determine the number of calories contained in a gram of carbohydrate, a gram of protein, and a gram of fat, and also obtain the formula for finding basal metabolic rate (BMR).

Write and solve additional equations to further explore information about calories and diet.